I was doing a little research for an upcoming presentation on Oracle 12c Adaptive Optimization and I came across a series of posts on Dynamic Sampling by Randolf Geist (one of my favorite Oracle smart guys). I could not find a complete list of the series of posts either through Google or the search function on the site where they were posted. I guessed at a couple of the url’s and got lucky. Thought it might be useful at some point in the future so I wrote them down on my blog (which is where I often keep private notes). But decided it might be useful to others so decided to go ahead and publish it.